I think the possible way that the percentage vote of a country is different to the next random sampling to the other data table is its population in each country. In the first table i think Malta has the edge to this table data and place in number 1 but to the other data table the country was left of.
The answer is 55.75! Trust me I took a test on this and its the right one.
The expression cos240 degrees is equivalent to cos120 degrees